Border Patrol agents found more than $10,000 in cash under the hood of a car they stopped in Carlsbad and $300,000 worth of marijuana in a bag at the border near Campo, officials said Tuesday.

About 3 a.m. Sunday, agents in Campo followed footprints from the Mexican border to a bag containing a vehicle tire. Inside the tire were 17 bundles of marijuana weighing 21 pounds and worth an estimated $321,750, Border Patrol officials said.

Three Mexican men later were arrested in connection with the drugs.

On Monday, agents pulled over a Ford Mustang driver on Interstate 5 near Carlsbad shortly before noon. A drug-sniffing dog reacted to the engine compartment and agents found $10,480 in cash wrapped in aluminum foil, hidden in the manifold, authorities said. The driver, a 23-year-old male U.S. citizen, was arrested.